Definition of chock in English:


Syllabification: chock
Pronunciation: /CHäk


1A wedge or block placed against a wheel or rounded object, to prevent it from moving.
More example sentences
  • The chocks under the wheels of the Juggernaut of state control have been well and truly blown away this week.
  • See that master ignition switches and individual ignition switches are off, set parking brakes and have the ground crew remove the wheel chocks.
  • I had failed to turn off the ignition and to install chocks on the van.
1.1A support on which a rounded structure, such as a cask or the hull of a boat, may be placed to keep it steady.
More example sentences
  • You will have to work with and get permission from the yard for this, as there are all sorts of legal and liability issues here for setting extra chocks.
  • Thinking on their feet, the technicians positioned a maintenance stand with a wooden chock under the housing to hold the pump in position.
  • But although she was up on chocks, her waterline didn't come any higher than my shoulder.
2A fitting with a gap at the top, through which a rope or line is run.
More example sentences
  • Where your lines go through chocks, they will need chafing gear.
  • Trad climbers use friends, chocks, stoppers and other passive and active gear instead.
  • You heard that correct, no pitons, no chocks, no carabiners, no protection to secure the ropes in the event of a fall.


[with object] Back to top  
1Prevent the forward movement of (a wheel or vehicle) with a chock.
More example sentences
  • If the car is manual transmission, chock the wheels well, remove the emergency brake, and put the car into gear - the higher the gear, the more play the car has.
  • Previously, flight pay was calculated from the moment that blocks are removed from a jet's wheels right before takeoff to the point where wheels are chocked after landing at its destination.
  • With the aircraft chocked by the crash crew, my instructor ran through the secure checks from memory, turned off the boost pumps and generators, and tried to secure the engines.
1.1Support (a boat, cask, etc.) on chocks.
More example sentences
  • We chocked the port side and gathered the crew on ICS to talk about what had happened.
  • Once we were chocked, chained and out of the jet, we saw that we had lost our left shoulder panel, and only two of 34 screws had been set and tightened.
  • The problem was on the port side of the airplane and the plane was not chocked and chained.


Middle English: probably from an Old Northern French variant of Old French çouche, çoche 'block, log', of unknown ultimate origin.

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